Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1 1 2 3534ACN1 60 0 found under Valve Flow Control by Romac Industries Ltd. The National Stock Number assigned to this part is 4820016332600, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1 1 2 3534ACN1 60 0.